JP7634226B2 - Lighting fixtures - Google Patents

Description

This disclosure relates to lighting fixtures, and more specifically to lighting fixtures that are installed at high locations indoors.

The lighting fixture described in Patent Document 1 is taken as an example of a conventional lighting fixture. The lighting fixture described in Patent Document 1 (hereinafter referred to as the conventional example) has an arm, a power supply unit, a top plate, a support framework, a light source unit, and a cover. The arm is used to attach the lighting fixture to a ceiling or a beam. Both ends of the arm are attached to the center of both sides of the lighting fixture. The arm is U-shaped. Both ends of the arm have arc-shaped holes and shaft holes at the top and bottom. The arm is held rotatably relative to the lighting fixture, with a bolt inserted through the shaft hole as a fulcrum.

A long hole-shaped mounting hole is provided at each end of the longitudinal direction of the mounting surface of the arm. The arm is attached directly to the ceiling or beam by bolts inserted into these two mounting holes, or indirectly via another mounting member.

JP 2017-41326 A

However, in the above conventional example, the number of mounting parts required to attach the arm to the mounting location differed depending on the mounting location of the arm.

The objective of this disclosure is to provide a lighting fixture that can reduce the number of mounting parts used.

A lighting fixture according to one aspect of the present disclosure includes a light source, a main body that holds the light source, and a support member that supports the main body. The support member has a fixing portion formed in a long plate shape and a pair of protruding portions that protrude from both ends of the fixing portion in the longitudinal direction. The tips of the pair of protruding portions are connected to the main body. The fixing portion has a first mounting portion to which a mounting member for mounting to a building construction material is attached in a first orientation, and a second mounting portion to which the mounting member is attached in a second orientation that intersects with the first orientation.

The lighting fixture disclosed herein has the advantage of being able to reduce the number of mounting parts required.

FIG. 1 is a perspective view of a lighting fixture according to an embodiment of the present disclosure. FIG. 2 is an exploded perspective view of the lighting fixture. FIG. 3 is a front view of the above lighting fixture. FIG. 4 is a right side view of the lighting fixture. FIG. 5 is a plan view of the above lighting fixture. FIG. 6 is a bottom view of the above lighting fixture. FIG. 7 is a side view, with a portion thereof omitted, of a building in which the above lighting fixture is installed. FIG. 8 is a perspective view showing the above lighting fixture in a mounting state in a first orientation. FIG. 9 is a perspective view showing the mounting state of the lighting fixture in the second orientation. FIG. 10 is a front view of the above lighting fixture attached to an inclined beam. FIG. 11 is a front view of the above lighting fixture attached to an inclined beam. Fig. 12A is a plan view of a fixing part in a first modification of the above lighting fixture, Fig. 12B is a plan view of a fixing part in a second modification of the above lighting fixture, Fig. 12C is a plan view of a fixing part in a third modification of the above lighting fixture, Fig. 12D is a plan view of a fixing part in a fourth modification of the above lighting fixture.

A lighting device according to an embodiment of the present disclosure will be described in detail with reference to the drawings. However, each figure described in the following embodiment is a schematic diagram, and the ratio of the size and thickness of each component does not necessarily reflect the actual dimensional ratio. Note that the configuration described in the following embodiment is merely one example of the present disclosure. The present disclosure is not limited to the following embodiment, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

(1) Overview of the Lighting Fixture According to the Embodiment The lighting fixture A1 according to the embodiment is a lighting fixture for so-called high ceiling lighting (also called a high ceiling fixture). A high ceiling fixture is a lighting fixture that is attached to a ceiling beam or the like to illuminate the floor surface in buildings with a ceiling height (10 m or more) that is higher than the ceiling height (2 m to 3 m) of homes, office buildings, etc., such as gymnasiums and warehouses.

The lighting device A1 according to the embodiment includes an LED unit 2 that is a light source, a main body 1 that holds the LED unit 2, and a support member (arm 3) that supports the main body 1 (see Figures 1 and 2).

The arm 3 has a fixed part 30 formed in a long plate shape and a pair of protruding parts 33 protruding from both ends in the longitudinal direction of the fixed part 30. The tips of the pair of protruding parts 33 are connected to the main body 1 (see Figure 1).

The fixing part 30 has a first mounting part 31 and a second mounting part 32. The first mounting part 31 has a mounting member 7 attached in a first orientation for mounting to a building construction material (e.g., a ceiling beam 8). The second mounting part 32 has a mounting member 7 attached in a second orientation that intersects with the first orientation.

The building is, for example, a factory, warehouse, gymnasium, or other building that uses a gabled rigid frame structure (see Figure 7). The mounting member 7 is attached to a beam 8 in the ceiling of the building, which is made of, for example, H-shaped steel (see Figure 8).

The mounting member 7 includes a hanger 70 to which the arm 3 is attached, a pair of hooks 71, a pair of bolts 72, etc. The hanger 70 is formed of lip channel steel (also called C-shaped steel or C-channel steel). The bottom plate of the hanger 70 has multiple bolt insertion holes. These multiple bolt insertion holes are aligned in a row along the longitudinal direction of the hanger 70.

The pair of hook fittings 71 are formed into a hook shape at the portion exposed from the groove of the hanger 70. Each of the pair of hook fittings 71 is engaged with the edge (lip) of the groove of the hanger 70 so that it can move along the longitudinal direction of the hanger 70. The pair of bolts 72 are screwed from above into the screw holes provided at the tip of the pair of hook fittings 71.

The mounting member 7 is attached to the beam 8 (H-shaped steel) by fastening the flanges of the beam 8 (H-shaped steel) inserted between the ends of each of the pair of hooks 71 and the hanger 70 with a pair of bolts 72.

Thus, in the lighting fixture A1 according to the embodiment, the mounting member 7 can be attached in a first orientation by the first mounting portion 31 of the fixing portion 30 (see FIG. 8). Also, in the lighting fixture A1 according to the embodiment, the mounting member 7 can be attached in a second orientation by the second mounting portion 32 of the fixing portion 30 (see FIG. 9). In other words, in the lighting fixture A1 according to the embodiment, the mounting member 7 can be attached to the fixing portion 30 of the arm 3 in two different orientations (first orientation, second orientation) for one mounting member 7. As a result, the lighting fixture A1 according to the embodiment can reduce the number of mounting members 7 used. Also, the lighting fixture A1 according to the embodiment can improve the workability of the installation work by reducing the number of mounting members 7 used.

(2) Details of the Lighting Fixture According to the Embodiment The lighting fixture A1 according to the embodiment (hereinafter, abbreviated as lighting fixture A1) will be described in detail with reference to the drawings. In the following description, unless otherwise specified, the up-down, front-back, and left-right directions indicated by arrows in Fig. 1 are defined as the up-down, front-back, and left-right directions of the lighting fixture A1.

The lighting fixture A1 includes a main body 1, an LED unit 2, and an arm 3. The lighting fixture A1 further includes a panel 4 and a power supply unit 5 (see Figures 1 to 6).

(2-1) LED Unit The LED unit 2 has a plurality of LEDs (Light Emitting Diodes) 20 and a substrate 21 on which the plurality of LEDs 20 are mounted (see FIG. 2). The plurality of LEDs 20 are each a packaged white LED for illumination, and are mounted on the bottom surface of the rectangular substrate 21 in a row and columns.

(2-2) Main Body The main body 1 has a base 10, a pair of first support plates 11, a pair of second support plates 12, and a plurality of heat sinks 13 (see FIGS. 1 and 2).

The base 10 is formed into a rectangular flat plate from a metal plate such as an aluminum plate (see Figure 2). The strength of the base 10 is improved by bending all four sides. The LED unit 2 is fixed to the underside of the base 10 with screws (see Figure 2).

The pair of first support plates 11 are each formed into a rectangular flat plate from a metal plate such as an aluminum plate. One end (lower end) of each of the pair of first support plates 11 in the longitudinal direction is bent at an approximately right angle. The lower end of each of the pair of first support plates 11 is screwed to the longitudinal (left-right) center of both ends (front and rear ends) of the short side of the base 10 (see FIG. 2). In other words, each of the pair of first support plates 11 stands upright from the longitudinal (left-right) center of both ends (front and rear ends) of the short side of the base 10.

Each of the pair of second support plates 12 is formed into a rectangular flat plate shape from a metal plate such as an aluminum plate. However, each of the pair of second support plates 12 is bent at an obtuse angle above the center in the longitudinal direction (vertical direction). In addition, one end (lower end) of each of the pair of second support plates 12 in the longitudinal direction is bent at an approximately right angle. The lower end of each of the pair of second support plates 12 is screwed to the center of the short side (front-to-back direction) at both ends (left and right ends) of the longitudinal direction of the base 10 (see FIG. 2). In other words, each of the pair of second support plates 12 stands upright from the center of the short side (front-to-back direction) at both ends (left and right ends) of the longitudinal direction of the base 10.

Each of the multiple heat sinks 13 is formed into a U-shape using aluminum plates. The multiple heat sinks 13 are attached to the top surface of the base 10 in a line in the front-to-back and left-to-right directions. That is, the heat generated by the LED unit 2 is conducted from the base 10 to the multiple heat sinks 13, and is dissipated from the multiple heat sinks 13 into the atmosphere.

(2-3) Panel The panel 4 is formed in a rectangular tray shape from a translucent synthetic resin material such as polycarbonate resin (see FIG. 2). The panel 4 is screwed to the bottom surface of the base 10 so as to cover the LED unit 2 from below (see FIG. 6). The panel 4 is configured to transmit the illumination light emitted from the LED unit 2 while protecting the LED unit 2.

(2-4) Power Supply Unit The power supply unit 5 includes a power supply circuit, a unit cover 50, a terminal block 53, a terminal cover 51, a unit mounting block 52, and the like (see FIGS. 1 to 3).

The power supply circuit (not shown) is a printed circuit with many circuit components mounted on a printed circuit board, and is configured to convert AC power supplied from a power system (commercial AC power source) into DC power. The DC power output from the power supply circuit is supplied to the LED unit 2 via an electrical cable 54 (see FIG. 3) to light up the LED unit 2.

The unit cover 50 is made of a metal plate such as galvanized steel and is shaped like a rectangular box with an open bottom. The power supply circuit is fixed to the inner bottom surface of the unit cover 50.

The terminal block 53 is attached to the outer surface on the left side of the unit cover 50 (see FIG. 3). The terminal block 53 is electrically connected to the power line of the power system so that it can be inserted and removed. The terminal block 53 is also electrically connected to the input terminal of the power circuit by an electric wire. In other words, the terminal block 53 serves to electrically connect the power line and the input terminal of the power circuit.

The terminal cover 51 is removably attached to the left side of the unit cover 50 so as to cover the terminal block 53. The front of the terminal cover 51 is provided with an inverted U-shaped notch 510 for passing the power line connected to the terminal block 53 (see Figures 1 and 3).

The unit mounting base 52 is made of a metal plate and is formed into a rectangular flat plate (see Figure 1). The four sides of the unit mounting base 52 are bent downward to improve its strength. The unit cover 50 is screwed to the upper surface of the unit mounting base 52. In other words, the lower surface of the unit cover 50 is covered by the unit mounting base 52.

The upper ends of a pair of second support plates 12 are screwed to the center of the short side (front-rear direction) at both ends (left and right ends) of the unit mounting base 52 in the longitudinal direction. Also, the center parts of the long side (left-right direction) at both ends (front and rear ends) of the unit mounting base 52 in the longitudinal direction are screwed to a pair of first support plates 11, one by one. That is, the unit mounting base 52 is connected to the main body 1 by being screwed to the pair of first support plates 11 and the pair of second support plates 12. A gap is provided between the lower surface of the unit mounting base 52 and the upper ends of each of the multiple heat sinks 13 (see FIG. 3).

(2-5) Arm The arm 3 has a fixed portion 30 and a pair of protruding portions 33. The fixed portion 30 and the pair of protruding portions 33 are integrally formed into a U-shape from a metal plate such as a galvanized steel plate (see FIGS. 1 and 2).

(2-5-1) Protrusions Each of the pair of protrusions 33 is coupled to the pair of first support plates 11 by a bolt 330 and a nut 331 (see FIGS. 1 and 4). Here, each of the pair of protrusions 33 can rotate relative to the pair of first support plates 11 with the bolt 330 as a rotation axis. However, an arc-shaped long hole 332 penetrates the lower end of each of the pair of protrusions 33, and a bolt 333 inserted into each long hole 332 is fixed to the pair of first support plates 11 by a nut 334 (see FIGS. 1 and 4). In other words, the axis of the bolt 333 abuts on both ends of the long hole 332 in the longitudinal direction, so that the range in which the pair of protrusions 33 can rotate relative to the pair of first support plates 11 is restricted.

(2-5-2) Fixed Part The fixed part 30 is formed in a rectangular flat plate shape. A pair of protrusions 33 are connected to both ends (front and rear ends) of the fixed part 30 in the longitudinal direction.

The central portion 300 in the longitudinal direction (front-to-back direction) of the fixed portion 30 protrudes in an arc shape along the lateral direction (left-to-right direction) of the fixed portion 30 (see Figures 1 and 5).

The fixing part 30 has a first mounting part 31 and a second mounting part 32. The fixing part 30 further has a third mounting part 34 and a fourth mounting part 35.

The first mounting portion 31 includes two oval first mounting holes 310. In other words, the two first mounting holes 310 are part of the components of the first mounting portion 31. The second mounting portion 32 includes two second mounting holes 320. In other words, the two second mounting holes 320 are part of the components of the second mounting portion 32.

One first mounting hole 310 is provided forward of the central portion 300, and the remaining first mounting hole 310 is provided rearward of the central portion 300. The long axis of the front first mounting hole 310 coincides with the longitudinal direction (front-rear direction) of the fixed portion 30. The long axis of the rear first mounting hole 310 coincides with the transverse direction (left-right direction) of the fixed portion 30. In other words, the long axes of the two first mounting holes 310 intersect at an angle of approximately 90 degrees (see FIG. 5).

The two second mounting holes 320 are provided in the central portion 300. The long axes of the two second mounting holes 320 are aligned with the short side direction (left-right direction) of the fixed portion 30. The two second mounting holes 320 are arranged in a row on either side of the center of the central portion 300.

The third mounting portion 34 is provided in the central portion 300. The third mounting portion 34 includes a round hole 340 provided in the center of the central portion 300 between the two second mounting holes 320, and an elongated hole 341 provided behind the round hole 340. The long axis of the elongated hole 341 coincides with the longitudinal direction (front-rear direction) of the fixing portion 30.

The fourth mounting portion 35 includes four oblong holes 350. Two of the oblong holes 350 are provided on both the front and rear sides of the second mounting hole 320 on the left side. The remaining two oblong holes 350 are provided on both the front and rear sides of the second mounting hole 320 on the right side. The major axes of these four oblong holes 350 coincide with the diameter of an imaginary circle centered on the round hole 340 of the third mounting portion 34. Furthermore, the four oblong holes 350 are rotationally symmetrical at 90 degrees with the round hole 340 of the third mounting portion 34 as the axis of symmetry (see FIG. 5).

(3) Installation of the Lighting Fixture According to the Embodiment Next, a procedure for installing the lighting fixture A1 in the construction materials of a building will be described.

An example of a building in which lighting fixture A1 is installed is shown in FIG. 7. The building shown in FIG. 7 is, for example, a warehouse. In this building, beams 8 are constructed from H-shaped steel. Beams 8 include multiple large beams 80 and multiple small beams 81. The building has a so-called angled rigid frame structure. Therefore, the multiple large beams 80 are climbing beams (inclined beams) that slope diagonally upward from columns 82 at the wall edge toward a ridge connection beam 83 in the center of the building.

(3-1) When attaching to a horizontal beam (part 1)
First, the installation procedure for attaching the lighting fixture A1 to a horizontal beam 8 (ridge tie beam 83) will be described. A worker performing the installation work (hereinafter, abbreviated as the worker) first attaches the mounting member 7 to the beam 8. The mounting member 7 is attached to the beam 8 so that the longitudinal direction of the hanger 70 intersects (is perpendicular to) the longitudinal direction of the beam 8 (see FIG. 8).

The worker uses the first mounting portion 31 to fix the fixed portion 30 of the arm 3 to the mounting member 7. That is, the worker inserts one bolt 311 into each of two bolt insertion holes (not shown) provided on the bottom surface of the hanger 70, and then inserts each of the two bolts 311 into each of the two first mounting holes 310 of the first mounting portion 31. The worker then tightens the nuts 312 on each of the two bolts 311 inserted into the two first mounting holes 310, thereby fixing the fixed portion 30 to the hanger 70 of the mounting member 7 (see FIG. 8).

In this case, the rotation axis of the arm 3 (bolt 330) is parallel to the longitudinal direction of the hanger 70 of the mounting member 7. In other words, the rotation axis of the arm 3 intersects (is perpendicular to) the longitudinal direction of the beam 8. As a result, the main body 1 of the lighting fixture A1 can rotate (swivel) along the longitudinal direction of the beam 8.

(3-2) When attaching to a horizontal beam (part 2)
Next, a procedure for mounting the lighting device A1 on the mounting member 7 using the second mounting portion 32 will be described.

The worker inserts one bolt 311 into each of two bolt insertion holes (not shown) provided on the bottom surface near the center of the hanger 70, and then inserts each of the two bolts 311 into each of the two second mounting holes 320 of the second mounting part 32. The worker then fastens the fixing part 30 to the hanger 70 of the mounting member 7 by tightening the nuts 312 on each of the two bolts 311 inserted into the two second mounting holes 320 (see FIG. 9).

In this case, the rotation axis of the arm 3 (bolt 330) intersects (is perpendicular to) the longitudinal direction of the hanger 70 of the mounting member 7. In other words, the rotation axis of the arm 3 is parallel to the longitudinal direction of the beam 8. As a result, the main body 1 of the lighting fixture A1 can rotate (swivel) along a direction that intersects (is perpendicular to) the longitudinal direction of the beam 8.

(3-3) When attaching to an inclined beam (part 1)
Next, a procedure for mounting the lighting fixture A1 on the inclined beam 8 (large beam 80) will be described.

The worker uses the first mounting portion 31 to secure the fixing portion 30 to the hanger 70 of the mounting member 7, similar to the procedure described in (3-1) (see Figure 10).

In this case, the main body 1 of the lighting fixture A1 can rotate (swivel) along the longitudinal direction of the beam 8. Therefore, the lighting fixture A1 can be installed with the main body 1 horizontal when attached to the beam 8 (large beam 80).

(3-4) When attaching to an inclined beam (part 2)
Next, a procedure for mounting the lighting fixture A1 on the beam 8 (small beam 81) rotated about its longitudinal axis will be described.

The worker uses the second mounting portion 32 to secure the fixing portion 30 to the hanger 70 of the mounting member 7, similar to the procedure described in (3-2) (see Figure 11).

In this case, the main body 1 of the lighting device A1 can rotate (swivel) in a direction intersecting (perpendicular to) the longitudinal direction of the beam 8. Therefore, the lighting device A1 can be installed with the main body 1 horizontal when attached to the beam 8.

(3-5) Installation Using the Third Mounting Portion Next, an installation procedure using the third mounting portion 34 of the fixing portion 30 will be described.

For example, when attaching the fixing part 30 directly to the flange of the beam 8, the worker inserts a bolt from a hole in the flange into the round hole 340 of the third mounting part 34 and tightens a nut on the bolt to fix the fixing part 30 to the flange. The worker then inserts a bolt that has been inserted into another hole in the flange into the long hole 341 of the third mounting part 34 and tightens the nut to prevent the arm 3 from rotating.

(3-6) Installation Using the Fourth Attachment Portion Finally, an installation procedure using the fourth attachment portion 35 of the fixing portion 30 will be described.

The fourth mounting portion 35 corresponds to a round metal exposed box (see Japanese Industrial Standard JIS C8340). The round exposed box is connected to a conduit that contains electric wires and is attached to the beam 8. Four screw holes are provided on the underside of the round exposed box.

The worker secures the fixing part 30 to the round exposed box by inserting a bolt into each of the four long holes 350 of the fourth mounting part 35 and screwing each bolt into each of the four screw holes of the round exposed box. The worker then inserts the electric wire drawn from the round exposed box into the central hole of the fixing part 30 (the round hole 340 of the third mounting part 34) and electrically connects it to the terminal block 53 of the lighting fixture A1.

(4) Modifications Several modifications of the lighting fixture A1 according to the embodiment will be described with reference to the drawings. However, each modification described below is characterized by the structure of the first mounting portion 31 and the second mounting portion 32 provided on the fixing portion 30 of the arm 3, and the other structures are common to the lighting fixture A1 according to the embodiment. Therefore, the same reference numerals are used for the components common to the lighting fixture A1 according to the embodiment, and illustrations and descriptions are omitted as appropriate.

(4-1) Modification 1
In lighting device A1 of modification 1, the long axis of one of the two second mounting holes 320 included in second mounting portion 32 intersects (is perpendicular to) the long axis of the other second mounting hole 320. In other words, the long axis of one second mounting hole 320 is parallel to the longitudinal direction of fixed portion 30, and the long axis of the other second mounting hole 320 intersects (is perpendicular to) the longitudinal direction of fixed portion 30 (see FIG. 12A ).

The lighting fixture A1 of variant 1 has the long axes of the two second mounting holes 320 intersecting (orthogonal) so that it has the advantage of being easy to adjust the inclination relative to the construction material (beam 8).

(4-2) Modification 2
In lighting device A1 of modification 2, first attachment portion 31 is provided at center portion 300 of fixing portion 30 (see FIG. 12B).

The lighting fixture A1 of the second modification can also accommodate a mounting member 7 having a shorter hanger 70 than the embodiment in which the first mounting portion 31 is provided outside the central portion 300 of the fixing portion 30.

(4-3) Modification 3
In lighting device A1 of modification 3, the edge of central portion 300 is formed into a trapezoidal shape (see FIG. 12C).

The lighting fixture A1 of variant 3 has the advantage that it is easier to visually check the angular misalignment between the construction material (beam 8) and the arm 3 compared to the embodiment in which the edge of the central portion 300 is formed in an arc shape.

(4-4) Modification 4
In lighting device A1 of modification 4, fixing portion 30 is formed in a rectangular shape (see FIG. 12D).

The lighting device A1 of variant 4 can therefore improve the mechanical strength of the central portion 300 compared to the embodiment in which the width of the front and rear portions of the central portion 300 is narrower than that of the central portion 300.

In addition, in the above modified examples 1 to 4, the third mounting portion 34 and the fourth mounting portion 35 may be provided in the central portion 300.

(4-5) Other Modifications The first mounting hole 310 of the first mounting portion 31 and the second mounting hole 320 of the second mounting portion 32 may each be any of a round hole, an oval hole, and an arc-shaped long hole. When the first mounting hole 310 and the second mounting hole 320 are oval holes, the fixing portion 30 can be temporarily held by a bolt with a nut attached, thereby improving the workability of the construction work.

The fixing portion 30 may also be constructed by combining a plate material having a second mounting portion 32 (two second mounting holes 320) with a plate material having a first mounting portion 31.

(5) Advantages of the Lighting Fixture According to the Embodiment As described above, in the lighting fixture A1, the fixing portion 30 of the arm 3 has a first mounting portion 31 to which the mounting member 7 for mounting to the beam 8 is attached in a first orientation, and a second mounting portion 32 to which the mounting member 7 is attached in a second orientation intersecting the first orientation. The "first orientation" is an orientation in which the longitudinal direction of the fixing portion 30 and the longitudinal direction of the hanger 70 of the mounting member 7 coincide (see FIG. 8). The "second orientation" is an orientation in which the longitudinal direction of the fixing portion 30 and the longitudinal direction of the hanger 70 of the mounting member 7 intersect (are perpendicular) (see FIG. 9).

For example, if the arm 3 does not have the second mounting portion 32, in order to attach it in the "second orientation", it is necessary to insert the bolts inserted into the bolt insertion holes of the hangers 70 of the two mounting members 7 into the two first mounting holes 310 of the first mounting portion 31 one by one and tighten the nuts. In other words, for an arm 3 that does not have the second mounting portion 32, two mounting members 7 are required depending on the orientation of attachment to the beam 8.

In contrast, lighting fixture A1 has a second mounting portion 32 on the arm 3 in addition to the first mounting portion 31, so that it can be attached using a single mounting member 7 whether it is attached in the "first orientation" or the "second orientation." As a result, lighting fixture A1 can reduce the number of mounting members 7 used compared to the conventional example.

In addition, in the lighting device A1, the two first mounting holes 310 are arranged on either side of the longitudinal center of the fixed part 30, and the two second mounting holes 320 are arranged on either side of the longitudinal center of the fixed part 30 and closer to the center than the two first mounting holes 310.

The lighting device A1 can fix the fixing portion 30 of the arm 3 to the mounting member 7 having the long hanger 70 in two directions, the first direction and the second direction. As a result, the lighting device A1 can reduce the size of the mounting member 7.

Furthermore, in the lighting fixture A1, the two first mounting holes 310 are provided in the fixing part 30 so that their longitudinal directions intersect with each other. Therefore, the position of the lighting fixture A1 can be adjusted in both the longitudinal and lateral directions of the hanger 70 of the mounting member 7, improving the workability of the installation work.

In addition, in the lighting device A1, if the two second mounting holes 320 are provided in the fixing part 30 so that their longitudinal directions are parallel to each other, the position can be adjusted in the longitudinal direction of the mounting member 7, improving the workability of the installation work.

On the other hand, in the lighting fixture A1, if the two second mounting holes 320 are provided in the fixing part 30 so that their longitudinal directions cross each other, the position can be adjusted in both the longitudinal and lateral directions of the hanger 70 of the mounting member 7, improving the workability of the installation work.

Here, in the lighting device A1, the width dimension of the fixing portion 30 at the center portion 300 where the two second mounting holes 320 are located is larger than the width dimension of the portion where the two first mounting holes 310 are located. Thus, by increasing the width dimension of the center portion 300 where the second mounting portion 32 is provided, the lighting device A1 can improve the mounting strength while preventing the fixing portion 30 from becoming larger.

In addition, the edge of the central portion 300 of the fixing portion 30 of the lighting device A1 is formed in an arc shape, which improves the ease of holding the fixing portion 30 in the hand.

(6) Summary The lighting fixture (A1) according to the first aspect of the present disclosure includes a light source (LED unit 2), a main body (1) that holds the light source, and a support member (arm 3) that supports the main body (1). The support member has a fixed portion (30) formed in a long plate shape and a pair of protruding portions (33) that protrude in the thickness direction of the fixed portion (30) from both ends in the longitudinal direction of the fixed portion (30). Each tip of the pair of protruding portions (33) is connected to the main body (1). The fixed portion (30) has a first mounting portion (31) to which a mounting member (7) for mounting to a building construction material (beam 8) is attached in a first direction, and a second mounting portion (32) to which the mounting member (7) is attached in a second direction that intersects with the first direction.

The lighting fixture (A1) according to the first aspect can be attached to the construction material with one mounting member (7) regardless of whether it is attached in the first orientation or the second orientation. As a result, the lighting fixture (A1) according to the first aspect can reduce the number of mounting members (7) used compared to the conventional example.

A lighting fixture (A1) according to the second aspect of the present disclosure can be realized by combining it with the first aspect. In the lighting fixture (A1) according to the second aspect, the first mounting portion (31) preferably includes a plurality of first mounting holes (310) penetrating the fixing portion (30) in the thickness direction. The plurality of first mounting holes (310) are preferably arranged on either side of the longitudinal center of the fixing portion (30). The second mounting portion (32) preferably includes a plurality of second mounting holes (320) penetrating the fixing portion (30) in the thickness direction of the fixing portion (30). The plurality of second mounting holes (320) are preferably arranged on either side of the longitudinal center of the fixing portion (30) and closer to the center than the plurality of first mounting holes (310).

The lighting fixture (A1) according to the second aspect allows the mounting member (7) to be made smaller.

The lighting fixture (A1) according to the third aspect of the present disclosure can be realized by combining it with the second aspect. In the lighting fixture (A1) according to the third aspect, the first mounting portion (31) preferably includes two first mounting holes (310) each consisting of an elongated hole. The two first mounting holes (310) are preferably provided in the fixing portion (30) so that their longitudinal directions cross each other.

The lighting fixture (A1) according to the third aspect can be adjusted in both the longitudinal and lateral directions of the mounting member (7), improving the ease of installation.

The lighting fixture (A1) according to the fourth aspect of the present disclosure can be realized by combining it with the third aspect. In the lighting fixture (A1) according to the fourth aspect, the second mounting portion (32) preferably includes two second mounting holes (320) each consisting of an elongated hole. The two second mounting holes (320) are preferably provided in the fixing portion (30) so that their longitudinal directions are parallel to each other.

The lighting fixture (A1) according to the fourth aspect can be adjusted in position along the length of the mounting member (7), improving the ease of installation.

The lighting fixture (A1) according to the fifth aspect of the present disclosure can be realized by combining it with the third aspect. In the lighting fixture (A1) according to the fifth aspect, the second mounting portion (32) preferably includes two second mounting holes (320) each consisting of an elongated hole. The two second mounting holes (320) are preferably provided in the fixing portion (30) so that their longitudinal directions cross each other.

The lighting fixture (A1) according to the fifth aspect can be adjusted in both the longitudinal and lateral directions of the mounting member (7), improving the ease of installation.

The lighting fixture (A1) according to the sixth aspect of the present disclosure can be realized by combining it with any of the second to fifth aspects. In the lighting fixture (A1) according to the sixth aspect, it is preferable that the width dimension of the portion (central portion 300) where the multiple second mounting holes (320) are arranged is larger than the width dimension of the portion where the multiple first mounting holes (310) are arranged.

The lighting fixture (A1) according to the sixth aspect can improve the mounting strength while preventing the fixing part (30) from becoming too large.

The lighting device (A1) according to the seventh aspect of the present disclosure can be realized by combining it with the sixth aspect. In the lighting device (A1) according to the seventh aspect, it is preferable that the edge of the fixing part (30) where the multiple second mounting holes (320) are arranged is formed in an arc shape.

The lighting device (A1) according to the seventh aspect can improve the ease of holding the fixing part (30) in the hand.

The lighting device (A1) according to the eighth aspect of the present disclosure can be realized by combining it with any of the first to seventh aspects. In the lighting device (A1) according to the eighth aspect, it is preferable that each of the pair of protrusions (33) is rotatably coupled to the main body (1).

The lighting device (A1) according to the eighth aspect can adjust the attitude (angle) of the main body (1) by rotating the main body (1) relative to the support member.

A1 Lighting fixture 1 Main body 2 LED unit (light source)
3 Arm (support member)
5 Power supply unit 7 Mounting member 8 Beam (construction material)
30 Fixed portion 31 First mounting portion 32 Second mounting portion 33 Protruding portion 300 Central portion (area where a plurality of second mounting holes are arranged)
310 First mounting hole 320 Second mounting hole

Claims (8)

A light source;
A body for holding the light source;
A support member for supporting the main body;
Equipped with
The support member is
A fixing portion formed in a long plate shape;
A pair of protruding portions protruding from both ends of the fixing portion in a longitudinal direction;
having
a tip end of each of the pair of projections is coupled to the main body;
The fixing portion is
a first mounting portion to which a mounting member for mounting to a building construction material is attached in a first orientation;
a second mounting portion to which the mounting member is attached in a second orientation intersecting the first orientation;
A lighting fixture having the above configuration. the first mounting portion includes a plurality of first mounting holes penetrating the fixing portion in a thickness direction of the fixing portion,
The first mounting holes are arranged on either side of a center of the fixed portion in a longitudinal direction,
the second mounting portion includes a plurality of second mounting holes penetrating the fixing portion in the thickness direction,
The lighting device according to claim 1 , wherein the second mounting holes are disposed on either side of the center and closer to the center than the first mounting holes. the first mounting portion includes two first mounting holes each formed as an elongated hole,
The lighting fixture according to claim 2 , wherein the two first mounting holes are provided in the fixing portion so that their longitudinal directions intersect with each other. the second mounting portion includes two second mounting holes each formed as an elongated hole,
The lighting fixture according to claim 3 , wherein the two second mounting holes are provided in the fixing portion so that their longitudinal directions are parallel to each other. the second mounting portion includes two second mounting holes each formed as an elongated hole,
The lighting fixture according to claim 3 , wherein the two second mounting holes are provided in the fixing portion so that their longitudinal directions intersect with each other. A lighting device as described in any one of claims 2 to 5, wherein the width dimension of the portion of the fixing portion where the plurality of second mounting holes are arranged is larger than the width dimension of the portion where the plurality of first mounting holes are arranged. The lighting fixture according to claim 6 , wherein the fixing portion has an edge in an arc shape at the portion where the plurality of second mounting holes are arranged. The lighting device according to any one of claims 1 to 7, wherein each of the pair of protrusions is rotatably coupled to the main body.

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